Alright, let's work through 8312864 times 51345066 step by step
8312864 × 51345066 = 51345066 × (8312864)
+ 51345066 × 4 yielding 205380264
+ 51345066 × 60 that results in 3080703960
+ 51345066 × 800 resulting in 41076052800
+ 51345066 × 2000 yielding 102690132000
+ 51345066 × 10000 resulting in 513450660000
+ 51345066 × 300000 yielding 15403519800000
+ 51345066 × 8000000 what gives us 410760528000000

= 426824550729024
